Wheel Hub: Service and Repair

DISASSEMBLY
1. Before disassembly, jack up the front of vehicle and support frame with jack stands.
2. Remove the two bolts from the rear side of the knuckle arm, then remove the brake caliper, with the brake hose attached.
3. Remove cover bolt.
4. Remove cover and gasket.
5. Remove lock washer.





6. Remove hub nut, using front hub nut wrench J-36827.
7. Remove outer bearing.
8. Remove oil seal.
9. REmove inner bearing.





10. Use a brass bar to remove the outer bearing outer race (1), oil seal, inner bearing and inner bearing outer race (2) front the hub.
11. Remove bolt.
12. If necessary, replace the wheel pin in the following manner.





- Scribe mark (1) on hub to disc before disassembly to insure proper assembly.





- Clamp hub and disc assembly in vise, using protective pads. Remove six (6) disc-to-hub retaining bolts.





- Place hub on a suitable work surface and remove wheel studs, as required, using a hammer.

INSPECTION AND REPAIR
Check the following parts for wear, damage or other abnormal conditions:
- Hub
- Hub bearing
- Bearing outer race
- Disc
- Oil seal

REASSEMBLY





1. Install wheel pin
- Place the hub on a wood workbench or a block of wood approximately 6" by 6" to protect the wheel stud ends and threads.
- Insert a wheel stud using a hammer.

NOTE: Be sure the wheel stud is started squarely and seats completely.





2. Align index marks (1) and install hub to disc.





3. Install bolt. Tighten the bolts to the specified torque.
Torque: 103 Nm (76 ft. lbs.)





4. Install outer bearing.
Install the outer race by driving it into the hub by using installer J-36828 and grip J-8092.





5. Install inner bearing. Install the outer race by driving it into the hub by using installer J-36829 and grip J-8092.





6. Install oil seal by using installer J-36830 and grip J-8092.
Apply Multipurpose grease NLGI No.2 or equivalent to the lip portion.





7. Apply Multipurpose grease NLGI No.2 in the hub and bearing.





8. Install hub nut by using wrench J-36827.
Turn the place where there is a chamfer in the tapped hole to the outer side, and attach the nut.

PRELOAD ADJUSTMENT
1. Tighten the hub nut to 29 Nm (22 ft. lbs.), then fully loosen the nut.





2. Tighten the hub nut to the value given, using a spring scale on the wheel pin.





If the measured bearing preload is outside the specifications, adjust it by loosening or tightening the bearing nut.





9. Install lock washer and lock screw in the following manner.
- Turn the side with larger diameter of the tapered bore to the vehicle outer side, then attach the washer.
- If the bolt holes in the lock plate are not aligned with the corresponding holes in the nut, reverse the lock plate.
- If the bolt holes are still out of alignment, turn in the nut just enough to obtain alignment.
- Screw is to be fastened tightly so its head may come lower than the surface of the washer.
10. Install the parking.
11. Install cover and tighten the cover bolt.
12. Install brake caliper and tighten fixing bolt.